year, engine size along with the make and model will help to diag a problem.

What is the car doing? What makes you think the problem is "not want to take fuel"? The more information that you can give me the more I can try and figure out what might be happening.

so, are you saying that the car cuts out on acceleration? when you gradually accelerate from a stop? When you floor it any time? engine cold or warm? sometimes? all the time? Does the engine hesitate then take off? does the engine bog down until you let off the throttle? Does the engine cut out and jerk like the engine is shutting on and off real quickly? does it cut out in the beginning but then power up if you hold the gas down?